It's still in the box. So I think I'll just take the cam back to summit and get one around the high 270 duration, and get the keith black 156-030 pistons. The next problem is problem is going to be matching up my cam operating range to my vic jr 3500-7000 rpm(only intake that'll bolt to the bowtie heads) operating range. Going down on the cam may cause me to loss power in the long run